search for: qbus

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[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
2014 Dec 03
1
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
...call virtio_queue_update_rings from virtio_queue_set_align? > > You're right, set_align is legacy only so we can always call > update_rings. > > > > > @@ -748,6 +756,11 @@ void virtio_queue_set_align(VirtIODevice *vdev, int n, int align) > > > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > > > VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); > > > > > > + /* virtio-1 compliant devices cannot change the aligment */ > > > + if (virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) { > > > + e...
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
2014 Dec 03
1
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
...call virtio_queue_update_rings from virtio_queue_set_align? > > You're right, set_align is legacy only so we can always call > update_rings. > > > > > @@ -748,6 +756,11 @@ void virtio_queue_set_align(VirtIODevice *vdev, int n, int align) > > > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > > > VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); > > > > > > + /* virtio-1 compliant devices cannot change the aligment */ > > > + if (virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) { > > > + e...
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
2016 Apr 21
4
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
...ons(-) diff --git a/include/hw/virtio/virtio-access.h b/include/hw/virtio/virtio-access.h index 967cc75..bb6f34e 100644 --- a/include/hw/virtio/virtio-access.h +++ b/include/hw/virtio/virtio-access.h @@ -23,7 +23,8 @@ static inline AddressSpace *virtio_get_dma_as(VirtIODevice *vdev) BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); - if (k->get_dma_as) { + if (virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM) && + k->get_dma_as) { return k->get_dma_as(qbus->parent); } return &amp...
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
2016 Apr 21
4
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
...ons(-) diff --git a/include/hw/virtio/virtio-access.h b/include/hw/virtio/virtio-access.h index 967cc75..bb6f34e 100644 --- a/include/hw/virtio/virtio-access.h +++ b/include/hw/virtio/virtio-access.h @@ -23,7 +23,8 @@ static inline AddressSpace *virtio_get_dma_as(VirtIODevice *vdev) BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); - if (k->get_dma_as) { + if (virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM) && + k->get_dma_as) { return k->get_dma_as(qbus->parent); } return &amp...
[PATCH RFC v6 12/20] virtio: disallow late feature changes for virtio-1
2014 Dec 12
2
[PATCH RFC v6 12/20] virtio: disallow late feature changes for virtio-1
...gt; > -int virtio_set_features(VirtIODevice *vdev, uint64_t val) > +static int __virtio_set_features(VirtIODevice *vdev, uint64_t val) Maybe avoid the double underscores here? But unfortunately, I also fail to come up with a better suggestion for a name here ... > { > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > VirtioBusClass *vbusk = VIRTIO_BUS_GET_CLASS(qbus); > @@ -994,6 +994,18 @@ int virtio_set_features(VirtIODevice *vdev, uint64_t val) > return bad ? -1 : 0; > } > > +int virtio_set_features(VirtIODevice *vdev, uint64_t val) > +{...
[PATCH RFC v6 12/20] virtio: disallow late feature changes for virtio-1
2014 Dec 12
2
[PATCH RFC v6 12/20] virtio: disallow late feature changes for virtio-1
...gt; > -int virtio_set_features(VirtIODevice *vdev, uint64_t val) > +static int __virtio_set_features(VirtIODevice *vdev, uint64_t val) Maybe avoid the double underscores here? But unfortunately, I also fail to come up with a better suggestion for a name here ... > { > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > VirtioBusClass *vbusk = VIRTIO_BUS_GET_CLASS(qbus); > @@ -994,6 +994,18 @@ int virtio_set_features(VirtIODevice *vdev, uint64_t val) > return bad ? -1 : 0; > } > > +int virtio_set_features(VirtIODevice *vdev, uint64_t val) > +{...
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
2014 Dec 03
2
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
...return; > } > vdev->vq[n].vring.num = num; > - virtqueue_init(&vdev->vq[n]); > } > > int virtio_queue_get_num(VirtIODevice *vdev, int n) > @@ -748,6 +756,11 @@ void virtio_queue_set_align(VirtIODevice *vdev, int n, int align) > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); > > + /* virtio-1 compliant devices cannot change the aligment */ > + if (virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) { > + error_report("tried to modify queue alignment...
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
2014 Dec 03
2
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
...return; > } > vdev->vq[n].vring.num = num; > - virtqueue_init(&vdev->vq[n]); > } > > int virtio_queue_get_num(VirtIODevice *vdev, int n) > @@ -748,6 +756,11 @@ void virtio_queue_set_align(VirtIODevice *vdev, int n, int align) > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); > > + /* virtio-1 compliant devices cannot change the aligment */ > + if (virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) { > + error_report("tried to modify queue alignment...
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
2016 Apr 21
1
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
...ss.h b/include/hw/virtio/virtio-access.h > > index 967cc75..bb6f34e 100644 > > --- a/include/hw/virtio/virtio-access.h > > +++ b/include/hw/virtio/virtio-access.h > > @@ -23,7 +23,8 @@ static inline AddressSpace *virtio_get_dma_as(VirtIODevice *vdev) > > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > > VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); > > > > - if (k->get_dma_as) { > > + if (virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM) && > > + k->get_dma_as) { > > retur...
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
2016 Apr 21
1
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
...ss.h b/include/hw/virtio/virtio-access.h > > index 967cc75..bb6f34e 100644 > > --- a/include/hw/virtio/virtio-access.h > > +++ b/include/hw/virtio/virtio-access.h > > @@ -23,7 +23,8 @@ static inline AddressSpace *virtio_get_dma_as(VirtIODevice *vdev) > > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > > VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); > > > > - if (k->get_dma_as) { > > + if (virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM) && > > + k->get_dma_as) { > > retur...
[PATCH RFC v6 12/20] virtio: disallow late feature changes for virtio-1
2014 Dec 11
0
[PATCH RFC v6 12/20] virtio: disallow late feature changes for virtio-1
...+++ b/hw/virtio/virtio.c @@ -978,7 +978,7 @@ void virtio_save(VirtIODevice *vdev, QEMUFile *f) vmstate_save_state(f, &vmstate_virtio, vdev); } -int virtio_set_features(VirtIODevice *vdev, uint64_t val) +static int __virtio_set_features(VirtIODevice *vdev, uint64_t val) { BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); VirtioBusClass *vbusk = VIRTIO_BUS_GET_CLASS(qbus); @@ -994,6 +994,18 @@ int virtio_set_features(VirtIODevice *vdev, uint64_t val) return bad ? -1 : 0; } +int virtio_set_features(VirtIODevice *vdev, uint64_t val) +{ + /* + * The driver must no...
[PATCH RFC v6 12/20] virtio: disallow late feature changes for virtio-1
2014 Dec 11
0
[PATCH RFC v6 12/20] virtio: disallow late feature changes for virtio-1
...+++ b/hw/virtio/virtio.c @@ -978,7 +978,7 @@ void virtio_save(VirtIODevice *vdev, QEMUFile *f) vmstate_save_state(f, &vmstate_virtio, vdev); } -int virtio_set_features(VirtIODevice *vdev, uint64_t val) +static int __virtio_set_features(VirtIODevice *vdev, uint64_t val) { BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); VirtioBusClass *vbusk = VIRTIO_BUS_GET_CLASS(qbus); @@ -994,6 +994,18 @@ int virtio_set_features(VirtIODevice *vdev, uint64_t val) return bad ? -1 : 0; } +int virtio_set_features(VirtIODevice *vdev, uint64_t val) +{ + /* + * The driver must no...
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
2014 Dec 03
0
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
...e == 0) { > > Let's just call virtio_queue_update_rings from virtio_queue_set_align? You're right, set_align is legacy only so we can always call update_rings. > > @@ -748,6 +756,11 @@ void virtio_queue_set_align(VirtIODevice *vdev, int n, int align) > > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > > VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); > > > > + /* virtio-1 compliant devices cannot change the aligment */ > > + if (virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) { > > + error_report("tried t...
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
2014 Dec 03
0
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
...e == 0) { > > Let's just call virtio_queue_update_rings from virtio_queue_set_align? You're right, set_align is legacy only so we can always call update_rings. > > @@ -748,6 +756,11 @@ void virtio_queue_set_align(VirtIODevice *vdev, int n, int align) > > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > > VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); > > > > + /* virtio-1 compliant devices cannot change the aligment */ > > + if (virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) { > > + error_report("tried t...
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
2016 Apr 21
0
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
...ude/hw/virtio/virtio-access.h b/include/hw/virtio/virtio-access.h > index 967cc75..bb6f34e 100644 > --- a/include/hw/virtio/virtio-access.h > +++ b/include/hw/virtio/virtio-access.h > @@ -23,7 +23,8 @@ static inline AddressSpace *virtio_get_dma_as(VirtIODevice *vdev) > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); > > - if (k->get_dma_as) { > + if (virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM) && > + k->get_dma_as) { > return k->get_dma_as(qbus->pa...
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
2016 Apr 21
0
[PATCH V2 RFC] fixup! virtio: convert to use DMA api
...ude/hw/virtio/virtio-access.h b/include/hw/virtio/virtio-access.h > index 967cc75..bb6f34e 100644 > --- a/include/hw/virtio/virtio-access.h > +++ b/include/hw/virtio/virtio-access.h > @@ -23,7 +23,8 @@ static inline AddressSpace *virtio_get_dma_as(VirtIODevice *vdev) > BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); > VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); > > - if (k->get_dma_as) { > + if (virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM) && > + k->get_dma_as) { > return k->get_dma_as(qbus->pa...
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
2014 Dec 03
2
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
On Tue, 2 Dec 2014 21:03:45 +0200 "Michael S. Tsirkin" <mst at redhat.com> wrote: > On Tue, Dec 02, 2014 at 04:41:36PM +0100, Cornelia Huck wrote: > > void virtio_queue_set_num(VirtIODevice *vdev, int n, int num) > > { > > + /* > > + * For virtio-1 devices, the number of buffers may only be > > + * updated if the ring addresses have
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
2014 Dec 03
2
[PATCH RFC v5 07/19] virtio: allow virtio-1 queue layout
On Tue, 2 Dec 2014 21:03:45 +0200 "Michael S. Tsirkin" <mst at redhat.com> wrote: > On Tue, Dec 02, 2014 at 04:41:36PM +0100, Cornelia Huck wrote: > > void virtio_queue_set_num(VirtIODevice *vdev, int n, int num) > > { > > + /* > > + * For virtio-1 devices, the number of buffers may only be > > + * updated if the ring addresses have
[PATCH RFC] fixup! virtio: convert to use DMA api
2016 Apr 18
2
[PATCH RFC] fixup! virtio: convert to use DMA api
...ons(-) diff --git a/include/hw/virtio/virtio-access.h b/include/hw/virtio/virtio-access.h index 967cc75..bb6f34e 100644 --- a/include/hw/virtio/virtio-access.h +++ b/include/hw/virtio/virtio-access.h @@ -23,7 +23,8 @@ static inline AddressSpace *virtio_get_dma_as(VirtIODevice *vdev) BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); - if (k->get_dma_as) { + if ((vdev->host_features & (0x1ULL << VIRTIO_F_IOMMU_PLATFORM)) && + k->get_dma_as) { return k->get_dma_as(qbus->parent);...
[PATCH RFC] fixup! virtio: convert to use DMA api
2016 Apr 18
2
[PATCH RFC] fixup! virtio: convert to use DMA api
...ons(-) diff --git a/include/hw/virtio/virtio-access.h b/include/hw/virtio/virtio-access.h index 967cc75..bb6f34e 100644 --- a/include/hw/virtio/virtio-access.h +++ b/include/hw/virtio/virtio-access.h @@ -23,7 +23,8 @@ static inline AddressSpace *virtio_get_dma_as(VirtIODevice *vdev) BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); - if (k->get_dma_as) { + if ((vdev->host_features & (0x1ULL << VIRTIO_F_IOMMU_PLATFORM)) && + k->get_dma_as) { return k->get_dma_as(qbus->parent);...